# Cobra Resources Drills 74 Holes at Wudinna & Exercises Manna Hill Option Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f Original source: https://www.cruxinvestor.com/posts/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option Publisher: cruxinvestor Original announcement: 2026-09-11T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Cobra Resources - Ticker: COBR - Exchange: Unavailable - Region: South Australia - Primary commodity: Copper - Secondary commodities: Gold, Rare earth oxides - Document categories: Drill results, Agreement transaction, Metallurgy - Extracted: 2026-09-11 15:07:27 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Cobra Resources reported high-grade copper and gold intercepts at its Blue Rose discovery and formally exercised its option to acquire the Manna Hill Copper Project. The company also completed 74 sonic core holes at the Wudinna Heavy Rare Earth Project to support an upcoming maiden mineral resource estimate. Reasoning: The company reported significant technical progress including high-grade copper intercepts at Blue Rose and the formal acquisition of the Manna Hill project, offsetting an increased operating loss. - Positive factor: High-grade copper discovery at Blue Rose - Positive factor: Exercise of option to acquire Manna Hill project - Positive factor: Significant drilling progress at Wudinna - Positive factor: Favorable metallurgical recovery results for rare earths - Negative factor: Increased operating loss compared to prior year - Negative factor: Assays for recent diamond drilling at Manna Hill are still pending Facts used in scoring: 13 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Drilling defined a high-grade mineralized flank at Head over approximately 5 kilometers. Evidence · text > Drilling defined a high-grade mineralized flank at Head over approximately 5 kilometers \(km\) **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: The release mentions diagnostic leach tests and metallurgical work with ANSTO. Evidence · text > Diagnostic leach tests on historical samples from Head in February 2026 confirmed recoveries **Single Domain Only** Polarity: negative Definition: Testing limited to one composite or domain — representativeness not established. Why it applies: only one composite was tested ## Extracted facts Stored fact records: 13. Some facts used in scoring do not have a stored record. ## Drill Results (12) ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-0) copper Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 1.02 - Grade Unit: % - Intercept: 74 m - From: 70 m - To: 144 m - Intercept Depth: 70 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:70-144 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: 1.02% Cu over 74m is a strong discovery intercept. - Positive factor: High-grade copper intercept Evidence · text > 74 m at 1.02% copper and 0.25 grams per metric ton \(g/t\) gold from 70 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-1) gold Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: gold - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.25 - Grade Unit: g/t - Intercept: 74 m - From: 70 m - To: 144 m - Intercept Depth: 70 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:70-144 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Gold grade is a low-grade byproduct in this copper intercept. Evidence · text > 74 m at 1.02% copper and 0.25 grams per metric ton \(g/t\) gold from 70 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-2) copper Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 1 - Grade Unit: % - Intercept: 62 m - From: 62 m - To: 124 m - Intercept Depth: 62 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:62-124 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Broad high-grade copper intersection. - Positive factor: Includes a high-grade sub-interval Evidence · text > 62 m at 1.00% copper and 0.08 g/t gold from 62 m, including 30 m at 1.56% copper #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-3) copper Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 1.56 - Grade Unit: % - Intercept: 30 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:62-124 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Stronger grade within the 62m intercept. - Positive factor: High-grade sub-interval Evidence · text > including 30 m at 1.56% copper #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-4) gold Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: gold - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.08 - Grade Unit: g/t - Intercept: 62 m - From: 62 m - To: 124 m - Intercept Depth: 62 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:62-124 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Low-grade gold byproduct. Evidence · text > 62 m at 1.00% copper and 0.08 g/t gold from 62 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-5) copper Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.6 - Grade Unit: % - Intercept: 86 m - From: 18 m - To: 104 m - Intercept Depth: 18 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:18-104 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Significant width copper intersection. Evidence · text > 86 m at 0.60% copper and 0.14 g/t gold from 18 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-6) gold Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: gold - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.14 - Grade Unit: g/t - Intercept: 86 m - From: 18 m - To: 104 m - Intercept Depth: 18 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:18-104 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Low-grade gold byproduct. Evidence · text > 86 m at 0.60% copper and 0.14 g/t gold from 18 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-7) copper Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.78 - Grade Unit: % - Intercept: 20 m - From: 38 m - To: 58 m - Intercept Depth: 38 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:38-58 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Moderate copper intersection. Evidence · text > 20 m at 0.78% copper and 0.13 g/t gold from 38 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Blue Rose RC [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-8) gold Needs review: ungrounded #### Identity - Hole ID: Blue Rose RC - Commodity: gold - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.13 - Grade Unit: g/t - Intercept: 20 m - From: 38 m - To: 58 m - Intercept Depth: 38 m #### Classification - Sample Type: drill - Group ID: Blue Rose RC:38-58 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Low-grade gold byproduct. Evidence · text > 20 m at 0.78% copper and 0.13 g/t gold from 38 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Head Prospect [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-9) rare earth oxides #### Identity - Hole ID: Head Prospect - Commodity: rare earth oxides - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 1232 - Grade Unit: ppm TREO - Intercept: 5.95 m - From: 27.8 m - To: 33.75 m - Intercept Depth: 27.8 m #### Classification - Sample Type: drill - Group ID: Head Prospect:27.8-33.75 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: High-grade TREO intercept. - Positive factor: Includes a high-grade sub-interval Evidence · text > 5.95 m at 1,232 ppm TREO from 27.8 m, including 1.45 m at 4,186 ppm TREO #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Head Prospect [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-10) rare earth oxides #### Identity - Hole ID: Head Prospect - Commodity: rare earth oxides - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 4186 - Grade Unit: ppm TREO - Intercept: 1.45 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Very high grade sub-interval. - Positive factor: High-grade sub-interval Evidence · text > including 1.45 m at 4,186 ppm TREO #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Head Prospect [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-drill-facts-11) rare earth oxides #### Identity - Hole ID: Head Prospect - Commodity: rare earth oxides - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 1783 - Grade Unit: ppm TREO - Intercept: 2.17 m - From: 30.4 m - To: 32.57 m - Intercept Depth: 30.4 m #### Classification - Sample Type: drill - Group ID: Head Prospect:30.4-32.57 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Moderate TREO intercept. Evidence · text > 2.17 m at 1,783 ppm TREO from 30.4 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ## Metallurgical Results (1) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-resources-drills-74-holes-at-wudinna-exercises-manna-hill-option--b56b65a7-2357-4475-bccc-2b55a474854f#fact-metallurgical-facts-12) rare earth oxides #### Identity - Commodity: rare earth oxides - Region: australia\_sa - Reported Region: South Australia - Ticker: COBR #### Test Work - Sample: Composite from Head formation #### Recovery - Recovery: 48 % - Recovery Basis: actual\_test - Head Grade: 977 - Head Grade Unit: ppm TREO #### Reagents - Reagent Notes: Recoveries of 48% neodymium, 47% praseodymium, 52% dysprosium, and 54% terbium #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Diagnostic leach tests confirmed recoveries for key REEs. - Positive factor: Confirmed recoveries from Pidinga formation Evidence · text > A composite grading 977 parts per million \(ppm\) total rare earth oxides \(TREO\) returned recoveries of 48% neodymium, 47% praseodymium, 52% dysprosium, and 54% terbium. ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.